Lamp for vehicle

ABSTRACT

A lamp for a vehicle includes a light source part including a light source, a first lens part including a plurality of micro incidence lenses on which light generated from the light source part is incident, a second lens part including a plurality of micro emitting lenses each corresponding to each of the plurality of micro incidence lenses, and a shield part disposed between the first lens part and the second lens part. The shield part includes a plurality of shields configured to block some of the light incident from the plurality of micro incidence lenses on the plurality of micro emitting lenses. In particular, a light axis of the light source may be disposed to be spaced apart from a center line which connects centers of an incidence surface and an emitting surface of the first lens part in at least one of a side direction or a downward direction.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Division of U.S. patent application Ser. No.16/123,861 filed on Sep. 6, 2018, which application is incorporatedherein by reference in its entirety.

BACKGROUND 1. Field of the Disclosure

The present disclosure relates to a lamp for a vehicle, and morespecifically, to a lamp for a vehicle configured to reduce loss of lightfor forming a cutoff line of a beam pattern.

2. Description of the Related Art

Generally, a vehicle includes a lamp with an illumination function ofallowing an object disposed near the vehicle to be easily seen whendriving during low light conditions (e.g., night), and a signalingfunction of informing other vehicles or pedestrians of a driving stateof the vehicle. For example, a head lamp, a fog lamp, and the like areprovided for illumination, and a turn signal lamp, a tail lamp, a brakelamp, a side marker, and the like are provided for signaling.

Among them, the head lamp plays an important role in safe driving byemitting light in the same direction as a driving direction of thevehicle to secure a front view of a driver when the vehicle is driven atnight or through a dark place such as a tunnel, or the like. The headlamp forms a beam pattern including a predetermined cutoff line toprevent glare which is generated toward a driver of a front vehicle suchas an oncoming vehicle, a preceding vehicle, or the like, and in thiscase, some of the light emitted to the front of the vehicle is blockedto form the cutoff line.

In this case, the light blocked to form the cutoff line of the beampattern is a cause of light loss, and accordingly, there are limitationsto improving light use efficiency. Accordingly, a method capable ofimproving light use efficiency by reducing the light blocked to form thecutoff line of the beam pattern is required.

SUMMARY

The present disclosure is directed to providing a lamp for a vehicleconfigured to reduce loss of light due to blockage to form a cutoff lineof a beam pattern. It should be noted that objects of the presentdisclosure are not limited to the above-mentioned objects, and otherobjects of the present disclosure will be apparent to those skilled inthe art from the following descriptions.

A lamp for a vehicle according to an exemplary embodiment of the presentdisclosure may include a light source part including a light source; afirst lens part including a plurality of micro incidence lenses on whichlight generated from the light source part is incident; a second lenspart including a plurality of micro emitting lenses each correspondingto each of the plurality of micro incidence lenses; and a shield partdisposed between the first lens part and the second lens part, whereinthe shield part includes a plurality of shields configured to block someof the light incident from the plurality of micro incidence lenses onthe plurality of micro emitting lenses, wherein a center line whichconnects centers of an incidence surface and an emitting surface of thesecond lens part is disposed to be spaced apart from a center line whichconnects centers of an incidence surface and an emitting surface of thefirst lens part in at least one of a side direction or a downwarddirection.

A lamp for a vehicle according to another exemplary embodiment of thepresent disclosure may include a light source part including a lightsource; a first lens part including a plurality of micro incidencelenses on which light generated from the light source part is incident;a second lens part including a plurality of micro emitting lenses eachcorresponding to each of the plurality of micro incidence lenses; and ashield part disposed between the first lens part and the second lenspart, wherein the shield part includes a plurality of shields configuredto block some of the light incident from the plurality of microincidence lenses on the plurality of micro emitting lenses. Inparticular, a light axis of the light source may be disposed to bespaced apart from a center line which connects centers of an incidencesurface and an emitting surface of the first lens part in at least oneof a side direction or a downward direction.

Other details of the present disclosure are included in the detaileddescription and accompanying drawings which will be described below.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects and features of the present disclosure willbecome more apparent by describing in detail exemplary embodimentsthereof with reference to the attached drawings, in which:

FIG. 1 is a perspective view illustrating a lamp for a vehicle accordingto an exemplary embodiment of the present disclosure;

FIG. 2 is a side view illustrating the lamp for a vehicle according tothe exemplary embodiment of the present disclosure;

FIG. 3 is a plan view illustrating the lamp for a vehicle according tothe exemplary embodiment of the present disclosure;

FIGS. 4 and 5 are perspective views illustrating a first lens part and asecond lens part according to the exemplary embodiment of the presentdisclosure;

FIGS. 6 and 7 are schematic views illustrating a micro emitting lensdisposed to be spaced apart from a center axis of a micro incidence lensaccording to the exemplary embodiment of the present disclosure;

FIG. 8 is a schematic view illustrating a location of a shield accordingto the exemplary embodiment of the present disclosure;

FIGS. 9A and 9B are a schematic views illustrating a beam patternaccording to the exemplary embodiment of the present disclosure;

FIG. 10 is a schematic view illustrating the first lens part and thesecond lens part according to the exemplary embodiment of the presentdisclosure;

FIG. 11 is a schematic view illustrating micro incidence lensesaccording to a location of the first lens part according to theexemplary embodiment of the present disclosure;

FIG. 12 is a schematic view illustrating micro emitting lenses accordingto a location of the second lens part according to the exemplaryembodiment of the present disclosure;

FIGS. 13 and 14 are schematic views illustrating a location of the microemitting lens disposed at a center portion of the second lens partaccording to the exemplary embodiment of the present disclosure;

FIGS. 15 and 16 are schematic views illustrating a location of the microemitting lens disposed at an upper side end of the second lens partaccording to the exemplary embodiment of the present disclosure;

FIGS. 17 and 18 are schematic views illustrating a location of the microemitting lens disposed at a lower side end of the second lens partaccording to the exemplary embodiment of the present disclosure;

FIGS. 19 and 20 are schematic views illustrating a location of the microemitting lens disposed at a left side end of the second lens partaccording to the exemplary embodiment of the present disclosure;

FIGS. 21 and 22 are schematic views illustrating a location of the microemitting lens disposed at a right side end of the second lens partaccording to the exemplary embodiment of the present disclosure;

FIG. 23 is a schematic view illustrating a shield part according to theexemplary embodiment of the present disclosure;

FIG. 24 is a side view illustrating a lamp for a vehicle according toanother exemplary embodiment of the present disclosure;

FIG. 25 is a plan view illustrating the lamp for a vehicle according toanother exemplary embodiment of the present disclosure;

FIGS. 26 and 27 are schematic views illustrating an image of lightemitted from a first lens part and a second lens part when a light axisof a light source part according to another exemplary embodiment of thepresent disclosure is disposed to be spaced apart in a side directionfrom the light source part;

FIGS. 28 and 29 are schematic views illustrating an image of the lightemitted from the first lens part and the second lens part when the lightaxis of the light source part according to another exemplary embodimentof the present disclosure is disposed to be spaced apart in a downwarddirection from the light source part;

FIG. 30 is a schematic view illustrating a light path of each of thefirst lens part and the second lens part when the light axis of thelight source part according to another exemplary embodiment of thepresent disclosure is disposed to be spaced apart in the side directionfrom the light source part; and

FIG. 31 is a schematic view illustrating a beam pattern based on thelight path in FIG. 30.

DETAILED DESCRIPTION

Advantages and characteristics of the present disclosure, and a methodof achieving the same will be apparent by referring to embodiments whichwill be described below in detail with the accompanying drawings.However, the present disclosure is not limited to the embodiments whichwill be described below but may be implemented in various differentforms, and the embodiments are provided merely so that the presentdisclosure is complete and those skilled in the art of the presentdisclosure can have a complete understanding of the scope of the presentdisclosure, and the present disclosure is defined only by the scope ofthe claims. The same reference symbols refer to the same or similarcomponents throughout the description.

Accordingly, in some embodiments, well-known processes, well-knownstructures, and well-known technologies are not specifically describedto avoid ambiguous interpretation of the present disclosure.

Further, terms used herein are only for the purpose of describingparticular embodiments and are not intended to limit the presentdisclosure. Singular forms are intended to also include plural referentsunless the context clearly indicates otherwise. It should be furtherunderstood that the terms “comprise” and/or “comprising” do not precludethe presence or addition of one or more elements, steps, or operationsother than the elements, steps, or operations specifically described.Further, the term “and/or” includes combinations of any or all of thementioned items.

Further, embodiments which will be disclosed in the description will bedescribed with reference to cross-sectional views and/or schematic viewswhich are ideal exemplary views of the present disclosure. Accordingly,shapes of the exemplary views may change according to a manufacturingtechnology, an allowable error, and/or the like. Accordingly, theembodiments of the present disclosure are not limited to the particularshapes that are shown but include changes of shapes formed based on amanufacturing process. Further, in each of the views shown in thepresent disclosure, each of the elements may be expanded or downscaledto be shown for convenience of the description. The same referencesymbols refer to the same or similar components throughout thedescription.

Hereinafter, the present disclosure will be described with reference tothe drawings for describing a lamp for a vehicle of exemplaryembodiments of the present disclosure.

FIG. 1 is a perspective view illustrating a lamp for a vehicle accordingto an exemplary embodiment of the present disclosure, FIG. 2 is a sideview illustrating the lamp for a vehicle according to the exemplaryembodiment of the present disclosure, and FIG. 3 is a plan viewillustrating the lamp for a vehicle according to the exemplaryembodiment of the present disclosure. Referring to FIGS. 1 to 3, a lampfor a vehicle 1 may include a light source part 100, a first lens part200, a shield part 300 and a second lens part 400.

The lamp for a vehicle 1 may be used as a head lamp provided to secure afront view for a driver when a vehicle is driven at night or through adark place such as a tunnel or the like, but the present disclosure isnot limited thereto, and the lamp for a vehicle 1 may also be used asany of various lamps installed in a vehicle such as a tail lamp, a brakelamp, a fog lamp, a backup lamp, a turn signal lamp, a daytime drivinglamp, and the like in addition to the head lamp. Further, in theexemplary embodiment of the present disclosure, the lamp for a vehicle 1may form a low beam pattern including a predetermined cutoff line toprevent glare which is generated toward a driver of a front vehicle suchas a preceding vehicle, an oncoming vehicle, or the like.

The light source part 100 may include a light source 110 and a lightguide part 120. In the exemplary embodiment of the present disclosure, asemiconductor light emitting element such as an light emitting diode(LED) or the like may be used as an example of the light source 110, butthe present disclosure is not limited thereto, and various kinds oflight sources such as a bulb and the like may be used as the lightsource 110 in addition to the semiconductor light emitting element. Thelight guide part 120 may include a center disposed at a light axis Ax ofthe light source 110 and serve to adjust a light path to allow lightgenerated from the light source 110 to proceed in parallel with thelight axis Ax of the light source 110 to be guided to the first lenspart 200.

Further, the light guide part 120 may serve to reduce light loss byguiding the light generated from the light source 110 to allow the lightto proceed toward the first lens part 200 closely, and may also serve toguide all light to be uniformly incident on the first lens part 200 byadjusting the light path to make the light incident on the first lenspart 200 to be substantially parallel with the light axis Ax of thelight source 110.

In the exemplary embodiment of the present disclosure, the light guidepart 120 may include a collimator lens configured to convert lightgenerated from the light source 110 with respect to the light axis Ax ina predetermined light irradiation range to parallel light parallel withthe light axis Ax of the light source 110 to make the light generatedfrom the light source 110 in the predetermined light irradiation rangeto be incident on the first lens part 200. In particular, the lightwhich passes through a central portion of the light guide part 120 mayproceed unimpeded to the first lens part 200, and light which passesthrough the outside of the central portion (e.g., a peripheral portion)of the light guide part 120 may be bent or reflected by the light guidepart 120 to proceed to the first lens part 200.

The first lens part 200 may include a plurality of micro incidencelenses 210, and the plurality of micro incidence lenses 210 may bedisposed in an area in which the light generated from the light sourcepart 100 is incident. In particular, incidence surfaces of the pluralityof micro incidence lenses 210 may form an incidence surface of the firstlens part 200, and emitting surfaces of the plurality of micro incidencelenses 210 may form an emitting surface of the first lens part 200. Inthe exemplary embodiment of the present disclosure, a center line C1which connects centers of the incidence surface and the emitting surfacein the first lens part 200 may be disposed coincident with the lightaxis Ax of the light source 110.

The shield part 300 may be disposed between the first lens part 200 andthe second lens part 400 and may include a plurality of shields 310configured to block some of light which passes through the plurality ofmicro incidence lenses 210 to allow the lamp for a vehicle 1 to form thecutoff line of the beam pattern, and the plurality of shields 310 mayinclude the same shape or different shapes.

The second lens part 400 may include a plurality of micro emittinglenses 410 each corresponding to each of the plurality of microincidence lenses 210, and the plurality of micro emitting lenses 410 mayserve to emit light which passes through the plurality of shields 310 toallow a beam pattern based on usage of the lamp for a vehicle 1 of thepresent disclosure to be formed in front of the vehicle. Like theabove-described first lens part 100, incidence surfaces of the pluralityof micro emitting lenses 410 may form an incidence surface of the secondlens part 400, and emitting surfaces of the plurality of micro emittinglenses 410 may form an emitting surface of the second lens part 400 inthe second lens part 400.

As shown in FIGS. 2 and 3, a center line C2 which connects centers ofthe incidence surface and the emitting surface of the second lens part400 may be disposed to be spaced apart from the center line C1 of thefirst lens part 200 in at least one direction among a side direction anda downward direction in the above-described lamp for a vehicle 1 of thepresent disclosure.

Since the lamp for a vehicle 1 may be used as the head lamp, a z-axismay be understood to show a front or forward direction of the vehicle,an x-axis may be understood to show a side direction (a lateraldirection) of the vehicle, and a y-axis may be understood to show avertical direction of the vehicle in FIGS. 2 and 3.

A case in which the center line C2 of the second lens part 400 isdisposed to be spaced apart from the center line C1 of the first lenspart 200 in at least one direction among the side direction and thedownward direction may be understood as a case in which the plurality ofmicro emitting lenses 410 each corresponding to each of the plurality ofmicro incidence lenses 210 are disposed to be spaced apart from aprevious location in at least one direction among a side direction and adownward direction compared with a case in which the center line C2 ofthe second lens part 400 is coincident with the center line C1 of thefirst lens part 200.

Although examples of the plurality of micro incidence lenses 210 and theplurality of micro emitting lenses 410 are described to correspond oneto one as aspheric lenses in the exemplary embodiment of the presentdisclosure, they are not limited thereto, and the plurality of microincidence lenses 210 and the plurality of micro emitting lenses 410 maycorrespond one to one, one to many, many to one, or many to many basedon sizes and shapes thereof.

For example, as shown in FIG. 4, the plurality of micro incidence lenses210 may be semi-cylindrical shaped lenses configured to extend in onedirection, and in this case, at least two of the plurality of microemitting lenses 410 may correspond to one of the plurality of microincidence lenses 210.

Further, as shown in FIG. 5, the plurality of micro emitting lenses 410may be semi-cylindrical shaped lenses configured to extend in onedirection, and in this case, at least two of the plurality of microincidence lenses 210 may correspond to one of the plurality of microemitting lenses 410.

A case in which the plurality of micro incidence lenses 210 are thesemi-cylindrical shaped lenses, and a case in which the plurality ofmicro emitting lenses 410 are the semi-cylindrical shaped lenses havebeen described above separately in FIGS. 3 and 4, but they are notlimited thereto, and both the plurality of micro incidence lenses 210and the plurality of micro emitting lenses 410 may be thesemi-cylindrical shaped lenses.

Further, examples of each of the plurality of micro incidence lenses 210and the plurality of micro emitting lenses 410 are described as thesemi-cylindrical shaped lenses configured to extend in the one directionin the above-described FIGS. 3 and 4, but they are not limited thereto,and the plurality of micro incidence lenses 210 and the plurality ofmicro emitting lenses 410 may include various sizes and shapes based onthe beam pattern formed in the lamp for a vehicle 1 of the presentdisclosure.

Hereinafter, the plurality of micro incidence lenses 210 and theplurality of micro emitting lenses 410 correspond one to one as theaspheric lenses, and an example of each of one micro incidence lens, oneshield, and one micro emitting lens that correspond to each other amongthe plurality of micro incidence lenses 210, the plurality of shields310, and the plurality of micro emitting lenses 410 will be described inthe exemplary embodiment of the present disclosure, and the descriptionmay similarly apply to other micro incidence lenses, shields, and microemitting lenses.

As described above, when the center line C2 of the second lens part 400is disposed to be spaced apart from the center line C1 of the first lenspart 200 in at least one direction among the side direction and thedownward direction in the lamp for a vehicle 1 of the presentdisclosure, a center axis Ax2 of the micro emitting lens 410 may bedisposed to be spaced downward from a previous location thereof by apredetermined interval (e.g., a vertical offset) d with respect to acenter axis Ax1 of the micro incidence lens 210 as shown in FIG. 6, andthe center axis Ax2 of the micro emitting lens 410 may be disposed to bespaced apart from the previous location thereof in a side direction by apredetermined interval (e.g., a horizontal offset or a lateral offset) wwith respect to the center axis Ax1 of the micro incidence lens 210 asshown in FIG. 7.

In this case, the center axis Ax1 of the micro incidence lens 210 mayrefer to an axis which connects the incidence surface and the emittingsurface of the micro incidence lens 210, and the center axis Ax2 of themicro emitting lens 410 may refer to an axis which connects theincidence surface and the emitting surface of the micro emitting lens410.

In the exemplary embodiment of the present disclosure, the center axisAx2 of the micro emitting lens 410 may be disposed to be spaced apartfrom the previous location thereof to the right to correspond to thecase of left-hand driving (LHD), but the present disclosure is notlimited thereto, and the center axis Ax2 of the micro emitting lens 410may be disposed to be spaced apart from the previous location thereof tothe left to correspond to the case of right-hand driving (RHD).

Meanwhile, when the micro emitting lens 410 is disposed to be spacedapart from the previous location thereof in the side direction and thedownward direction by the predetermined intervals d and w, respectively,based on a location of the micro incidence lens 210 as shown in theabove-described FIGS. 6 and 7, the shield 310 may also be disposed to bespaced apart from the previous location thereof in a side directionand/or a downward direction like the micro emitting lens 410 as shown inFIG. 8.

In other words, since an upper end of the shield 310 may be required tobe disposed at or near the center axis Ax2 of the micro emitting lens410 to form the cutoff line of the beam pattern, when the micro emittinglens 410 is spaced apart in the side direction and/or the downwarddirection, the shield 310 may also be displaced in the side directionand/or the downward direction like the micro emitting lens 410, and thusthe upper end of the shield 310 may be disposed at or near the centeraxis Ax2 of the micro emitting lens 410 even when the micro emittinglens 410 is disposed to be spaced apart in the side direction and/or thedownward direction.

As described above, the center axis Ax2 of the micro emitting lens 410may be disposed to be spaced apart in the side direction and/or thedownward direction, and the shield 310 may also be displaced in the sidedirection and/or the downward direction with respect to the center axisAx1 of the micro incidence lens 210. This is to increase brightness ofthe beam pattern by reducing the amount of light which is blocked forforming the cutoff line of the beam pattern. The brightness may also beincreased by allowing the high intensity light near the center axis Ax1of the micro incidence lens 210 to be emitted through the micro emittinglens 410 without being blocked by the shield 310.

In other words, when the center axis Ax1 of the micro incidence lens 210and the center axis Ax2 of the micro emitting lens 410 are coincidentwith each other, as shown in FIG. 9A, since a center S of the beampattern is disposed at a vanishing point at which a line H-H and a lineV-V intersect, an area B11 blocked and lost by the shield 310 to form acutoff line CL becomes approximately half of the entire beam patternarea. Conversely, in the exemplary embodiment of the present disclosure,since the center axis Ax2 of the micro emitting lens 410 may be disposedto be spaced apart from the center axis Ax1 of the micro incidence lens210 in the side direction and the downward direction as shown in FIG.9B, the center S of the beam pattern may be disposed to be spaced apartfrom the vanishing point at which the line H-H and the line V-Vintersect in the side direction and the downward direction, the lightloss may be decreased since the area B12 blocked by the shield 310 toform the cutoff line CL may be reduced compared with FIG. 9A.

Further, since the shield 310 may be displaced in the side directionand/or the downward direction to be disposed like the micro emittinglens 410, the light which passes through the center axis Ax1 of themicro incidence lens 210 and includes a high light amount may beprevented from being blocked, and accordingly, since a high illuminancearea formed at the center S of the beam pattern may not be blocked bythe shield 310 and may be used to form the beam pattern, the brightnessof the beam pattern may be increased and the visibility may be improved.

Hereinafter, in the exemplary embodiment of the present disclosure, apredetermined interval by which the center axis Ax2 of the microemitting lens 410 is spaced apart in the downward direction may bereferred to as a first interval d, and a predetermined interval by whichthe center axis Ax2 of the micro emitting lens 410 is spaced apart inthe side direction may be referred to as a second interval w.

An example in which the micro emitting lens 410 is disposed to be spacedapart in the side direction and/or the downward direction has beendescribed in the exemplary embodiment of the present disclosure, but itis merely an example for aiding understanding of the present disclosure,and the micro emitting lens 410 may be disposed to be spaced apart in atleast one of the side direction or the downward direction along the beampattern based on the lamp for a vehicle 1 of the present disclosurewithout being limited to the above example.

In the above described exemplary embodiment, each of the first lens part200 and the second lens part 400 may be quadrangular overall, but thegeometries of the lenses are not limited thereto, and each of the firstlens part 200 and the second lens part 400 may be hexagonal as shown inFIG. 10, in which case the number of each of the micro incidence lensesand the micro emitting lenses included in each of the first lens part200 and the second lens part 400 may be increased. In this case, sincethe light which departs from the first lens part 200 and the second lenspart 400 in a vertical direction and a lateral direction may be used,light use efficiency may be improved. The shape of each of the firstlens part 200 and second lens part 400 of the present disclosure is notlimited to the above-described quadrangular shape or hexagonal shape,and may include various shapes capable of forming an optimal beampattern and improving light use efficiency.

Meanwhile, as described above, the light generated from the light source110 may be incident on the first lens part 200 in parallel with thelight axis Ax of the light source 110 by the light guide part 120, inwhich case the light incident on each of the plurality of microincidence lenses 210 may be incident on each of the plurality of microemitting lenses 410 through a focus surface. The focus surface may be avirtual surface that includes a rear focus of each of the plurality ofmicro emitting lenses 410 disposed between the micro incidence lenses210 and the plurality of micro emitting lenses 410.

In this case, the light incident on each of the plurality of microincidence lenses 210 may be incident on the plurality of micro emittinglenses 410 passing through and corresponding to at least one focusincluded in the focus surface based on a sort of the lens. For example,when the plurality of micro incidence lenses 210 and the plurality ofmicro emitting lenses 410 include the aspheric lenses of the samediameter, the plurality of micro incidence lenses 210 and the pluralityof micro emitting lenses 410 may correspond to each other one to one, inwhich case the light incident on each of the plurality of microincidence lenses 210 may pass through a rear focus of each of theplurality of micro emitting lenses 410.

Further, when the plurality of micro incidence lenses 210 are thesemi-cylindrical shaped lenses configured to extend in the onedirection, a plurality of micro emitting lenses arranged in a directionin which the semi-cylindrical shaped lenses extend may each correspondto each of the plurality of micro incidence lenses 210. In this case,the light incident on each of the plurality of micro incidence lenses210 may pass through a rear focus of each of the plurality of microemitting lenses which are arranged in the direction in which thesemi-cylindrical shaped lenses extend.

Meanwhile, the light incident from the light source part 100 on thefirst lens part 200 may not be incident in parallel with the light axisAx of the light source 110 when it is at a remote distance from thelight axis Ax.

In particular, the light generated from the light source 110 may form apredetermined light emitting angle with respect to the light axis Ax.When the light which proceeds with a large angle from the light axis Axof the light source 110 among the light generated from the light source110 is at a remote distance from the light axis Ax of the light source110, since adjusting the light path by the light guide part 120 to makethe light path to be parallel with the light axis Ax may be moredifficult than the light which proceeds with a small angle from thelight axis Ax of the light source 110, the light which passes throughthe light guide part 120 may be incident on the first lens part 200 notin parallel with the light axis Ax of the light source 110 but with apredetermined angle from the light axis Ax of the light source 110. Inthis case, the light which proceeds by passing through the microincidence lens may proceed with a predetermined angle from the lightaxis Ax of the light source 110.

In other words, when the center axes Ax2 of the plurality of microemitting lenses 410 are disposed to be spaced apart in the sidedirection and the downward direction at the same interval, althoughlight is incident on the micro emitting lens disposed at a centralportion of the second lens part 400 in parallel with the light axis Axof the light source 110, in micro emitting lenses disposed at lateralends and vertical ends with respect to the center portion of the secondlens part 400, light is incident with a predetermined angle with respectto the light axis Ax of the light source 110, and thus some of the lightwhich passes through the micro incidence lens may not be incident.

In view of the foregoing, in the exemplary embodiment of the presentdisclosure, based on a distance spaced apart from the center portion ofthe second lens part 400, the plurality of micro emitting lenses 410 maybe spaced apart in at least one direction among the above-described sidedirection and downward direction at various intervals to reduce lightloss caused by the light that is not incident on the micro emittinglens.

Hereinafter, in the exemplary embodiment of the present disclosure, asshown in FIG. 11, a micro incidence lens 210 a disposed at a centerportion of the first lens part 200 may be referred to as a first microincidence lens, a micro incidence lens 210 b disposed at an upper sideend of the first lens part 200 may be referred to as a second microincidence lens, a micro incidence lens 210 c disposed at a lower sideend of the first lens part 200 may be referred to as a third microincidence lens, a micro incidence lens 210 d disposed at a left side endof the first lens part 200 may be referred to as a fourth microincidence lens, and a micro incidence lens 210 e disposed at a rightside end of the first lens part 200 may be referred to as a fifth microincidence lens. Similarly, as shown in FIG. 12, micro emitting lenses410 a, 410 b, 410 c, 410 d, and 410 e disposed at the center portion, anupper side end, a lower side end, a left side end, and a right side endof the second lens part 400 may be referred to as first to fifth microemitting lenses, respectively.

As shown in FIGS. 13 and 14, light may be incident on the first microincidence lens 210 a in parallel with the center axis Ax1, and in thiscase, light which passes through the first micro incidence lens 210 amay be incident on the first micro emitting lens 410 a even when thefirst micro emitting lens 410 a is disposed to be spaced apart in adownward direction by a first interval d and in a side direction by asecond interval w.

As shown in FIGS. 15 and 16, since light is incident on the second microincidence lens 210 b with a predetermined angle in an upward directionwith respect to the center axis Ax1, light which passes through thesecond micro incidence lens 210 b may proceed further in the upwarddirection compared with the above-described FIG. 13, and in this case,the second micro emitting lens 410 b may be spaced apart in a downwarddirection by an interval d11 which is smaller than the first interval dand in a side direction by the second interval w to allow the lightwhich passes through the second micro incidence lens 210 b to beincident on the second micro emitting lens 410 b.

In particular, since the light which passes through the second microincidence lens 210 b may face in a relatively upward direction, thesecond micro emitting lens 410 b may be spaced apart in the downwarddirection by an interval which is smaller than the first interval d toallow the light which passes through the second micro incidence lens 210b to be incident on the second micro emitting lens 410 b.

As shown in FIGS. 17 and 18, since light is incident on the third microincidence lens 210 c with a predetermined angle in a downward directionwith respect to the center axis Ax1, light which passes through thesecond micro incidence lens 210 b may proceed further in the downwarddirection compared with the above-described FIG. 13, and in this case,the third micro emitting lens 410 c may be spaced apart in the downwarddirection at an interval d12 which is greater than the first interval dand in a side direction by the second interval w to allow the lightwhich passes through the third micro incidence lens 210 c to be incidenton the third micro emitting lens 410 c.

In particular, since the light which passes through the third microincidence lens 210 c may face in a relatively downward direction, thethird micro emitting lens 410 c may be spaced apart in the downwarddirection by an interval which is greater than the first interval d sothat the light which passes through the third micro incidence lens 210 cmay be incident on the third micro emitting lens 410 c.

As shown in FIGS. 19 and 20, since light is incident on the fourth microincidence lens 210 d with a predetermined angle in a left direction withrespect to the center axis Ax1, light which passes through the fourthmicro incidence lens 210 d may proceed further in the left directioncompared with the above-described FIG. 14, and in this case, the fourthmicro emitting lens 410 d may be spaced apart in a downward direction bythe first interval d and in a side direction by an interval w11 which issmaller than the second interval w to allow the light which passesthrough the fourth micro incidence lens 210 d to be incident on thefourth micro emitting lens 410 d.

In particular, since the light which passes through the fourth microincidence lens 210 d may face in a relatively leftward direction, thefourth micro emitting lens 410 d may be spaced apart in the sidedirection by an interval which is smaller than the second interval w toallow the light which passes through the fourth micro incidence lens 210d to be incident on the fourth micro emitting lens 410 d.

As shown in FIGS. 21 and 22, since light is incident on the fifth microincidence lens 210 e with a predetermined angle in a right directionwith respect to the center axis Ax1, light which passes through thefifth micro incidence lens 210 e may proceed further in the rightdirection compared with the above-described FIG. 14, and in this case,the fifth micro emitting lens 410 e may be spaced apart in a downwarddirection by the first interval d and in a side direction at an intervalw12 which is greater than the second interval w to allow the light whichpasses through the fifth micro incidence lens 210 e to be incident onthe fifth micro emitting lens 410 e.

In particular, since the light which passes through the fifth microincidence lens 210 e may face in a relatively rightward direction, thefifth micro emitting lens 410 e may be spaced apart in the sidedirection by an interval which may be greater than the second interval wto allow the light which passes through the fifth micro incidence lens210 e to be incident on the fifth micro emitting lens 410 e.

Although an example in which the micro emitting lenses are disposed ateach of the center portion of the second lens part 400, and the upperside end, the lower side end, the right side end, and the left side endwith respect to the center portion has been described in theabove-described exemplary embodiment, the remaining micro emittinglenses may also include at least one of the intervals spaced apart inthe downward direction and/or the side direction which may be changedbased on a distance or a direction from a center of the second lens part400 like the above-described FIGS. 13 to 22.

In other words, the plurality of micro emitting lenses 410 of the secondlens part 400 may be spaced apart so that at least one of the intervalsspaced apart in the downward direction and the side direction based onthe distance or the direction from the center portion of the second lenspart 400 may be a different interval.

Meanwhile, the shield part 300 may include the plurality of shields 310of the same shape in the above-described exemplary embodiment, but thepresent disclosure is not limited thereto, and the plurality of shields310 may form different parts of the beam pattern. For example, as shownin FIG. 23, a part 310 a of the plurality of shields 310 may form both ahorizontal edge and an inclined edge of the cutoff line, another part310 b may form the horizontal edge of the cutoff line, and still anotherpart 310 b may form the inclined edge of the cutoff line.

In the exemplary embodiment of the present disclosure, since the cutoffline may include the horizontal edge and the inclined edge as shown inthe above-described FIGS. 9A and 9B, although the plurality of shields310 may form at least one of the horizontal edge or the inclined edge,the above example is merely an example for aiding understanding of thepresent disclosure. The plurality of shields 310 may also form the sameedge or different edges based on a shape of the cutoff line.

As described above, the lamp for a vehicle 1 of the present disclosuremay improve light use efficiency by reducing an area blocked by theshield for forming the cutoff line of the beam pattern, and may reducethe light loss by varying at least one of intervals in a side directionor a downward direction based on a direction in which the lightproceeds.

Further, in the above-described exemplary embodiment, the center line C2of the second lens part 400 may be disposed to be spaced apart in atleast one direction among the side direction and the downward directionwith respect to the center line C1 of the first lens part 200 to improvelight use efficiency by reducing the light blocked for forming thecutoff line of the beam pattern. However, the present disclosure is notlimited thereto, and the light axis Ax of the light source 110 may bedisposed to be spaced apart in at least one direction among the sidedirection and the downward direction compared with the center line C1 ofthe first lens part 200 and the center line C2 of the second lens part400 to reduce the light blocked for forming the cutoff line of the beampattern.

FIG. 24 is a side view illustrating a lamp for a vehicle according toanother exemplary embodiment of the present disclosure, and FIG. 25 is aplan view illustrating the lamp for a vehicle according to anotherexemplary embodiment of the present disclosure. Referring to FIGS. 24and 25, a lamp for a vehicle 1 according to another exemplary embodimentof the present disclosure may include a light source part 100, a firstlens part 200, a shield part 300, and a second lens part 400 like theabove-described exemplary embodiment, the same reference numerals areused for elements configured to perform the same or similar functions asthose of the above-described exemplary embodiment, and detaileddescription of such functions will be omitted.

In another exemplary embodiment of the present disclosure, center linesC1 and C2 of the first lens part 200 and the second lens part 400 may bedisposed coincident with each other, and a light axis Ax may be disposedto be spaced apart from the center lines C1 and C2 in at least one of aside direction or a downward direction in a light source 110.

In this case, the light axis Ax of the light source 110 may be disposedto be spaced apart from the center lines C1 and C2 of the first lenspart 200 and the second lens part 400 in at least one direction amongthe side direction and the downward direction to dispose a center of abeam pattern formed by the lamp for a vehicle 1 of the presentdisclosure to be spaced apart from a vanishing point at which line H-Hand line V-V intersect in a side direction and a downward direction asshown in FIG. 9B to reduce light loss by reducing an area blocked by theshield part 300 for forming a cutoff line.

FIG. 24 is an example of a case in which the light axis Ax of the lightsource 110 is disposed to be spaced apart from the center lines C1 andC2 of the first lens part 200 and the second lens part 400 in thedownward direction, and FIG. 25 is an example of a case in which thelight axis Ax of the light source 110 is disposed to be spaced apartfrom the center lines C1 and C2 of the first lens part 200 and thesecond lens part 400 in the side direction (a right direction).

An image of light emitted from the first lens part 200 and the secondlens part 400 when the light axis Ax of the light source 110 accordingto another exemplary embodiment of the present disclosure is disposed tobe spaced apart from the center lines C1 and C2 of the first lens part200 and the second lens part 400 in the side direction will be shownwith reference to FIG. 26 and FIG. 27.

FIG. 26 is an example illustrating an image of light emitted from thefirst lens part 200 when the light axis Ax of the light source 110 isdisposed to be spaced apart from the center lines C1 and C2 of the firstlens part 200 and the second lens part 400 in a right direction, and theimage of the light may be disposed to be spaced apart in a sidedirection compared with a case in which the light axis Ax of the lightsource 110 is coincident with center lines C1 and C2 of the first lenspart 200 and the second lens part 400.

FIG. 27 is an example illustrating an image of light emitted from thesecond lens part 400 when the light axis Ax of the light source part 100is disposed to be spaced apart from the center lines C1 and C2 of thefirst lens part 200 and the second lens part 400 in a right direction,and the image of the light may be disposed to be spaced apart in a sidedirection compared with the case in which the light axis Ax of the lightsource 110 is coincident with the center lines C1 and C2 of the firstlens part 200 and the second lens part 400.

In this case, a part B21 of the image of the light emitted from secondlens part 400 may be blocked by the shield part 300 to form a cutoffline of a low beam pattern. A dotted line in the above-described FIGS.26 and 27 shows a beam pattern in a case in which the light axis Ax ofthe light source 110 is coincident with the center lines C1 and C2 ofthe first lens part 200 and the second lens part 400. When the lightaxis Ax of the light source 110 is disposed to be spaced apart from thecenter lines C1 and C2 of the first lens part 200 and the second lenspart 400 in the right direction, since an area B21 in the shield part300 blocked by the shield part 300 may be relatively decreased, lightloss may be reduced. Further, since a center of the beam pattern may bedisposed to be spaced apart from the vanishing point at which line H-Hand line V-V intersect in the side direction, brightness of the beampattern may increase and visibility may be improved.

Meanwhile, when the light axis Ax of the light source 110 is disposed tobe spaced apart from the center lines C1 and C2 of the first lens part200 and the second lens part 400 in the right direction, the beampattern may be known to move in the left direction in FIG. 26 and in theright direction in FIG. 27 since each of lateral sides of light whichpasses through the first lens part 200 and the second lens part 400 maybe shown in a reverse image, and light generated from the light source110 may move in the right direction in which the light source 110 may bespaced by passing through the first lens part 200 and the second lenspart 400.

An image of light emitted from the first lens part 200 and the secondlens part 400 when the light axis Ax of the light source 110 accordingto another exemplary embodiment of the present disclosure is disposed tobe spaced apart from the center lines C1 and C2 of the first lens part200 and the second lens part 400 in the downward direction will be shownwith reference to FIG. 28 and FIG. 29.

FIG. 28 is an example illustrating an image of light emitted from thefirst lens part 200 when the light axis Ax of the light source 110 isdisposed to be spaced apart from the center lines C1 and C2 of the firstlens part 200 and the second lens part 400 in the downward direction,and the image of the light may be disposed to be spaced apart in anupward direction compared with the case in which the light axis Ax ofthe light source 110 is coincident with the center lines C1 and C2 ofthe first lens part 200 and the second lens part 400.

FIG. 29 is an example illustrating an image of light emitted from thesecond lens part 400 when the light axis Ax of the light source 110 isdisposed to be spaced apart from the center lines C1 and C2 of the firstlens part 200 and the second lens part 400 in a downward direction, andthe image of the light may be disposed to be spaced apart in a downwarddirection compared with the case in which the light axis Ax of the lightsource 110 is coincident with the center lines C1 and C2 of the firstlens part 200 and the second lens part 400.

In this case, a part 31 of the image of the light emitted from secondlens part 400 may be blocked by the shield part 300 to form a cutoffline of a low beam pattern.

A dotted line in the above-described FIGS. 28 and 29 shows a beampattern in a case in which the light axis Ax of the light source 110 iscoincident with the center lines C1 and C2 of the first lens part 200and the second lens part 400. When the light axis Ax of the light source110 is disposed to be spaced apart from the center lines C1 and C2 ofthe first lens part 200 and the second lens part 400 in the downwarddirection, since an area B31 in the shield part 300 blocked by theshield part 300 may be relatively decreased, the light loss may bereduced. Further, since a center of the beam pattern may be disposed tobe spaced apart from the vanishing point at which line H-H and line V-Vintersect in the downward direction, the brightness of the beam patternmay increase and the view may be improved.

Meanwhile, when the light axis Ax of the light source 110 is disposed tobe spaced apart from the center lines C1 and C2 of the first lens part200 and the second lens part 400 in the downward direction, the beampattern may be known to move in the upward direction in FIG. 28 and inthe downward direction in FIG. 29 since each of vertical sides of lightwhich passes through the first lens part 200 and the second lens part400 may be shown in a reverse image, and the light generated from thelight source 110 may move in the downward direction in which the lightsource 110 is spaced by passing through the first lens part 200 and thesecond lens part 400.

In another exemplary embodiment of the present disclosure, when thelight axis Ax of the light source 110 is disposed to be spaced apartfrom the center lines C1 and C2 of the first lens part 200 and thesecond lens part 400 in the side direction, light which passes throughthe micro incidence lens 210 may be incident not only on a correspondingmicro emitting lens 410 but also on other adjacent micro emittinglenses, and thus a light irradiation range in the side direction may beexpanded.

In particular, when the light axis Ax of the light source 110 and thecenter lines C1 and C2 of the first lens part 200 and the second lenspart 400 are coincident with each other, light incident on the pluralityof micro incidence lenses 210 may be incident on a plurality ofcorresponding micro emitting lenses 410 by proceeding in parallel withthe light axis Ax of the light source part 100. Conversely, when thelight axis Ax of the light source 110 is disposed to be spaced apartfrom the center lines C1 and C2 of the first lens part 200 and thesecond lens part 400 in the side direction, since the light incident onthe plurality of micro incidence lenses 210 is incident on the microincidence lens 210 with a predetermined angle in the side direction withrespect to the center axis Ax1, as shown in FIG. 30, although some L1 ofthe light incident on the micro incidence lenses 210 may be incident onthe corresponding micro emitting lenses 410, the remaining light (L2)may be incident on other micro emitting lenses adjacent to the microemitting lenses 410.

In this case, a light irradiation range emitted from the lamp for avehicle 1 of the present disclosure may be further expanded in the sidedirection by the light incident on other micro emitting lenses adjacentto the corresponding micro emitting lenses 410. Accordingly, when thelight axis Ax of the light source 110 and the center lines C1 and C2 ofthe first lens part 200 and the second lens part 400 are coincident witheach other, the light irradiation range may be further expanded in theside direction compared with a path through which light proceeds (adotted line) and thus the visibility may be improved. Accordingly, asshown in FIG. 31, a spread area of the beam pattern formed by the lampfor a vehicle 1 of the present disclosure may be expanded to secure awider view.

As described above, in the lamp for a vehicle 1 of the presentdisclosure, one of the light axis Ax of the light source 110, the centerline C1 of the first lens part 200, or the center line C2 of the secondlens part 400 may be disposed to be spaced apart from others in at leastone of the side direction or the downward direction to prevent a centralregion of the light emitted from the light source 110 from being blockedby the shield part 300. Accordingly, the lamp for a vehicle 1 of thepresent disclosure may reduce the light loss by reducing the areablocked to form the cutoff line of the beam pattern, and may increasethe brightness of the beam pattern, and thereby improving the visibilityby preventing blockage of a center of the beam pattern that includeshigh brightness.

The above-described lamp for a vehicle of the present disclosure mayachieve at least one of the following effects. Since a beam pattern maybe formed to move in at least one of a side direction or a downwarddirection, an area blocked to form a cutoff line of the beam pattern maybe reduced, and thus the light loss may be reduced. Further, since thebeam pattern may be formed to move in at least one of the side directionor the downward direction, a visibility may be improved since blockingof a center of the beam pattern that includes high brightness may beprevented, and thus brightness of the beam pattern may be increased. Itshould be noted that effects of the present disclosure are not limitedto the above-mentioned effects, and other effects of the presentdisclosure will be apparent to those skilled in the art fromdescriptions in the claim.

Those skilled in the art of the present disclosure may understand thatthe present disclosure may be embodied in other specific forms withoutchanging the technical spirit or essential characteristics. Accordingly,the above described exemplary embodiments should be understood to beexemplary and not limiting. The scope of the present disclosure is shownby the claims rather than the detailed description, and all ofvariations or different forms derived from the means, scope, andequivalents of the claims should be interpreted to be included in thescope of the present disclosure.

What is claimed is:
 1. A lamp for a vehicle, comprising: a light source part including a light source; a first lens part including a plurality of micro incidence lenses on which light generated from the light source part is incident; a second lens part including a plurality of micro emitting lenses each corresponding to each of the plurality of micro incidence lenses; and a shield part disposed between the first lens part and the second lens part, wherein the shield part includes a plurality of shields configured to block some of the light incident from the plurality of micro incidence lenses on the plurality of micro emitting lenses, wherein a light axis of the light source is disposed to be spaced apart from a center line which connects centers of an incidence surface and an emitting surface of the first lens part in at least one of a side direction or a downward direction, and wherein light emitted from each of the plurality of micro incidence lenses is incident on at least one of the micro emitting lenses that corresponds to each of the plurality of micro incidence lenses and a micro emitting lens adjacent to the at least one corresponding micro emitting lens.
 2. The lamp of claim 1, wherein the center line of the first lens part is coincident with a center line which connects centers of an incidence surface and an emitting surface of the second lens part.
 3. The lamp of claim 1, wherein the light incident to the adjacent micro emitting lens extends a light irradiation range of the at least one corresponding micro emitting lens in a side direction.
 4. The lamp of claim 1, wherein: the light source part further includes a light guide part configured to adjust a light path to allow the light generated from the light source to proceed in parallel with the light axis of the light source; and a center of the light guide part is disposed at the center line of the first lens part.
 5. The lamp of claim 4, wherein the light guide part includes a collimator lens configured to convert the light generated from the light source to parallel light.
 6. The lamp of claim 1, wherein some of the plurality of shields include shapes different from shapes of other shields among the plurality of shields to form different areas of the beam pattern.
 7. The lamp of claim 1, wherein at least one of the plurality of micro incidence lenses or the plurality of micro emitting lenses is a lens having a semi-cylindrical shape that extends in one direction. 